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UK Standard for Heat Interface Units

The UK test standard for Heat Interface Units, developed to assess UK heat network operating parameters, is regarded as an important step towards improving the overall performance of British district heating schemes.

Established as part of a UK government research project into heat network efficiency, the standard was, and continues to be, developed under the auspices of a steering group of industry experts: 

  • Gareth Jones Fair Heat Ltd
  • Martin Crane Carbon Alternatives 
  • Nigel Shapland National House-Building Council
  • Phil Jones CIBSE 
  • Department for Business, Energy and Industrial Strategy 
  • Steve Harper Galliard Homes 
  • Dmitry Mostovoy ENGIE
  • Ali Bahar Metropolitan 
  • Josu Aurrekoetxea Pinnacle Power
  • Robert Hunter L&Q Energy 
  • Ian Spencer Vital Energi
  • Pete Mills Bosch

PURPOSE

  • To enable the performance of different HIUs to be evaluated within the context of typical UK operating conditions thereby enabling heat network developers to evaluate the performance of specific HIUs against design requirements
  • To generate operating data on the expected performance of specific HIUs given "normal" operating parameters to enable heat network operators to identify anomalous performance 
  • To provide a framework for HIU manufacturers to evaluate the performance of their equipment within the UK context thereby feeding into their continuous improvement development programmes 

OUTPUTS 

  • Mapping of key metrics over the duration of each test
  • Calculation of the annual Volume Weighted Return Temperature (VWART) from the HIU, with this being a composite of estimations of the annual volume-weighted return temperatures for domestic hot water, space heating and keep-warm functions 
  • Evidence of compliance with other performance and reliability metrics, such as speed of temperature stabilisation.  

 

UK HIU Test Regime - October 2018

Download PDF

 

TEST PROCESS AND INTERACTION OF PARTIES

 

 

APPROVED TEST HOUSES

                                        

 

 

 

test register

Tested against HIU Test Regime October 2018

Supplier HIU Serial Number Test Report VWART Calculation Comments
S2HIU19000576

Model name:                    T3 ECO HIU

Manufacturer:                  Switch2 Energy Ltd

 
Supplier HIU Serial Number Test Report VWART Calculation Comments
1901137

Model name:                    MTA TWIN 24-40

Manufacturer:                  Albion Water Management
Supplier HIU Serial Number Test Report VWART Calculation Comments
276 2148 684BI

Model name: DUTY UFH 10/26  Heatmaster Bus iCover

Manufacturer:                Dutypoint Ltd
Supplier HIU Serial Number Test Report VWART Calculation Comments
1-4022-14-180301-01

Model name: 'Guildford'

Manufacturer: Herz Valves Ltd
Supplier HIU Serial Number Test Report VWART Calculation Comments
44100395

Model name:                        Vital Energi vTherm

Manufacturer:                      Vital Energi

  

Tested against HIU Test Regime December 2016

Supplier HIU Serial Number Test Report VWART Calculation Comments
A727-20174-20194

UK Distributor: Frese

Contact
Supplier HIU Serial Number Test Report VWART Calculation Comments
L7020418

Model name:
VVX-I-R FI 1-1 RAD

Manufacturer: Danfoss
Supplier HIU Serial Number Test Report VWART Calculation Comments
L7020418

Model name: 
VVX-I-R FI 1-1 UFH

Manufacturer: Danfoss
Supplier HIU Serial Number Test Report VWART Calculation Comments
52060-05102015024

Model Name: DATA

Manufacturer: HSF B.V.
Supplier HIU Serial Number Test Report VWART Calculation Comments
MTPE1B1317A11

Model name: MTP4R-1R-TL1/1B  (ModuSat XR-ECO TP 55-10R)

Manufacturer:                      Evinox Energy Ltd
Supplier HIU Serial Number Test Report VWART Calculation Comments
738965/4069451

Model name: Heating substation

F3-H2T2-GE7-E-NR-O-9-2,5-0,40-2x110-1x130
Supplier HIU Serial Number Test Report VWART Calculation Comments
033313031145

Model name:                      HIU E 70/5

Manufacturer:                    Essco Controls Ltd 

UK distributor:                    Remeha
Supplier HIU Serial Number Test Report VWART Calculation Comments
182000101

Model Name:                    SATK32105

Manufacturer:                  Caleffi
Supplier HIU Serial Number Test Report VWART Calculation Comments
A1-10920.40OH30

Model name:              Meibes A2RXE

Manufacturer:            HSF

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